I'm interested on what whitenoise you are listening to? There are times it feels too silent in my home office but I'm also not in the mood to listen to music.
I made it myself with audacity. Wearing earplugs at the same time, if I get the whitenoise to where I can just hear it this lets me work even in coffeeshops in almost pure silence. If you want the actual mp3, email me (email via profile).
I like the brown noise on http://www.simplynoise.com , personally. They have a thunderstorm soundscape on there too that is nice sometimes.